Remote control for indicators



Jan.' 16, 1923. 1,442,064. 0. E. GROSHELL.

REMOTE CONTROL FOR INDICATORS.

FILED IAN. ZI, 1920.

I/I//TNESSES l f /NVENOH 060641 1I C127y 057ml Z.

A UURNEYS Patented `lan. 16, 1923.

UNITED STATES OSCAR E. GROSHELL, OF SALT LAKE CITY, UTAH.

REMOTE CONTROL FOR INDICATORS.

Application filed January 21, 1920.

To all lwhom 'it/1 may concern.'

Be known that I, OsoAn Gnosini-LL, a citizen of the United States, and a resident of Salt Lake City, in the county olt {Tialt Lake and State of Utah, have invented certain new and useful Improvements in Re mote Controls for Indicators, of which the following is a specification.'

My `invtmtion relates to in'iprorements in indicators, it relating more particularly in the means whereby such indicators are capable of control from a remote point., and it consists in the constructions, combinations and arrangements herein described and claimed.

The foremost object of my invention is to provide electrical switch mechanism to .be operatively associated with any type of 1ndicator, as for example, such as described 1n my ifo-pmiding application liled Jan. 2l, i920, Serial No. 543,105, and capalole ot beH ing controlled or operated from a remote point.

Y Other objects and advantages will appear in the following specilication, reference being .had to the accompanying drawing, in whi cli Figure l is a plan view of the improved remote control, and

Figure 2 a side elevation thereof, certain ofthe circuits which cooperate therewith, beir illustrated diagran'nnatically.

ln order that the manner in which the in volition is associated with a cash register, for ample, and an auxiliary iinlicator vliereim', may be understood, it is necessary to lirst briefly describe a portieri of the cash register, and then that portion of the aiu;- iliary indicator with which the remote control directly associated.

The cash r' ster contains a plurality of rows ol' ke resliiectively constituting` the Cunitsj tens, hundreds, etc., columns, each row of keys beingl innnbere-.l from l to 5). This is a common and well known arrangement. For the purpose o'l' illustration, one of the keys, designated 24, is shown in Figure 2.

The shank 25 of this key is arranged to engage a contact il when the key is depressed. The key when thus depressed, remains so until it is released by mechanism which forms a part of the cash register. The contact Lfl-l is mounted on an insulating strip 40. The adjacent metallic part of the cash regis- Serial No. 353,104.

ter frame is indicated 49. This frame constitutes a ground connection, to which a wire 5l from a movable contact 27 leads. This contact cooperates with a lifted contact E26.

The auxiliary cash register indicator comprises a plurality of drop magnets, one of which is designated 9a in Figure 2. There is one drop magnet for each key of the ci, sh register. Contact points at two places are required to be engaged before the circuit embracing the drop magnet 9, is conipleted.

One of these contact points occurs between the shank Q5 of the key 24 and the contact il with which the shank cooperates, and the other occurs at the main drop switch 35. This switch comprises a solenoid 30, to the core 3l of which, the actuator shaft is joined. This shaft carries the Contact 33 to engage the fixed Contact 34C when the core 3l. is drawn in by virtue ot the energization of the solenoid.

Both the drop nmg'nets 9 and the main drop switch 35, with its companion mechanism, are parts of the auxiliary indicator which are controlled by the switch mechanism which forms the basis of this application. By virtue of the fact that this switch mechanism is arranged to be actuated from a distant point, it is herein termed a remote control.

A wire 4:5 leads from the positive terminal of the secondary of the transformer 4G, to one of the fixed contacts 34 of the main drop switch 35. A branch of this same wire also connects to the release magnet 2.8, which is a part of the remote control and is more fully described below. A wire 47 leads from the other contact l-/l to the drop magnet 9a. A. wire 42 leads Jfrom the other end of the winding ol the drop magnet to the contact 4i of the cash register. wire 4S leads from the negative terminal of the secondary of the transformer to the ground connectiini or frame 4:9 ot' the cash register.

fires 77 and 78 laad to the primary of the transformer 4G. A branch 77 of the wire 77 connects to one end of the winding of the solenoid 30, while a branch 78a of the wire 78 leads through the plate 75 of the remote control switch, which is now described. The release magnet 28, mentioned above, is suitably mounted on one side of a plate 56, which is made of metal. Upon the attraction of the armature 52 by the energi- Zation of the magnet Q8, the latch disk 53,

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` by which the armature is carried, is partially rotated, causing the litting` ot the latch 54 from engagement with the end of the arm The latch 54 is carried by the dislr 53, and extends through a suitable opening in the plate 56 on which the disk is pivotally mounted at 57.

A pin 58 carried by a normally raised locking pawl 59, causes the movement of the locking pawl into the dotted line position in Figure 2, by virtue ol" the connection ot the pin with the latch dislr 53 on back ot the plate 56. Therefore, although the arm 55 is released by the latch 54, it is immediately :aught and again held by the locking pawl 59 until the release magnet 28 is deenergized. All this takes but an instant and the arm 55 is again released. so that it may continue to move and reach the dotted line position.

A spring 60 causes the arm 55 to move into this position. The arm carries a switch disk 6l, of insulating material, and this disk moves with the arm. Both are pivoted at 62. The disk has an opening 63 through which the pivot screw 64 of the switch arm 65 can be reached. A sprino' 66 joins the eX- tension oit the switch arm 6o to the lock stud 67 on the dislr 6l. Normally, the spring 66 holds the contact 68 et the switch arm 65 in engagement with the light contact 69 on an insulating plate 70. A lamp 7l is suitably connected to the contact 69 and branch 7T, so that when the switch arm 65 is in the normal position, shown in fulllines, the lamp is lighted. 0n the other hand, when the switch arm 65 is raised, the lamp is extinguished Pivoted at 82 to the lower end o-'t the latch arm 55, is a return arm 8l. rlliis arm has a slot 83 which is occupied by the pin 84 on the adjustable collar 85 of the actuator shaft 32. rlhe actuator shaft shown in connection with the switch mechanism in Figure 2, is the same actuator' shaft that is shown diagrammatically on the lower part ot the sheet. The reader will understan d that this duplication is necessary in order to make it clear how the circuit connections run and also to show how the return arm is connected to the same actuator sha-tt. Actually in the niaehine, there is only one actuator shaft.

Cooperating with the Contact 615% ot the switch arm 65, is a lined contact 79 which has a wire 80 leading to the other end of the winding of the solenoid 30. As more fully described below, the switch arm 65 is arranged to be moved into the dotted line position, lwhereupon the contacts 68 and 7 9 engage tocomplete a circuit Vthrough the solenoid. ln order that this Contact may be maintained for a relatively great length ot time, vthe switch arm 65 is provided with a holding stud 88, arranged to enter the aperture 87 of the spring lock plate 86.

The lock stud is released from the aperture 87 when the stud 67, to which one end ot lthe spring 66 is connected, moves beneath the portion 89 ot' the spring lock 86, springing it outwardly and thereby releasing the switch arm.

The operation.

Assume that the operator wishes to record a sale involving the use oithe lrey 9. He depresses the key. rihe shank 25 engages the contact 41 and thus closes one part of the circuit embracing the drop magnet 9a. A movable part ot the cash register, as for example, a pivoted handle, is subsequently operated so that the contacts 9:6, 2'? are brought into engagement, causing current to `flow as follows:

From the positive terminal of the secondary of the transformer 46, over wire 45, through release magnet 2S, to conta-ct 26, through contact 27, over wire 5l to grouiiifl 49, and back to the negative terminal oi the secondary ot the transformer over the wire 48. The energization ot' the magnet 28 attracts the armature 52. The latch disk 53 is partially rotated in a countercloelrwise direction, releasing the latch arm which moves but a short distance, however, because of the fact that the saine rotation of the latch disk 53 causes the lowering of the locking pawl 59 into the path of the arm 55.

The contact at 26 and 2i' is but instantaneous, consequently the magnet 28 is again deenergized almost immediately. This causes the counter-rotation of the latch disk 53 and the consequent raising ot the `locking pawl 59. The switch disk 61 therefore moves into the dotted line position by virtue ot the spring 66. As soon as the stud 67' gets below the horizontal center on which the pivot 64 is located, the spring 66 will operate to move the switch arm 65 into the dotted line position, so that a circuit is complete-d as tollows:

Current flows from the line wire 76. over ybranch 78 to the plate 75, through the switch arm 65, to contact 79, over wire 89 through the winding ot the solenoid S9, and over branch 77a back to the ne; tive line wire 77. The solenoid thus being energized, draws the core 3l in and causes the contact 33, 84 of the switch 35 to engage. The second point ot the circuit embracing the drop magnet 9 is then closed and consequently' current Hows as follows: y

F rom the positive terminal ofthe secondary of the transformer 46 over wire 45 through the Contact 33, 34, over wire 47 through the winding of the drop magnet 9, over wire 42 to contact 4l, shank 25, ground 49, and over the return wire 48 to the negative terminal of the secondary of the transformer. The energization of the drop magnet 9acauses the dropping of a corresponding plate which forms a part of the auxiliary indicator and requires no illustration here,

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since it is illustrated in the co-pending application above referred to.

Reverting for a moment to the time when the disk 61 is moved to the dotted line position, it is to be observed that the return arm 8l also moved to the dotted line position so that the hase of the slot 83 approached the pin 84 on the collar 85. In the same movement, the switch arm became locked into the contact engaging position, shown in dotted lines, by virtue of the engagement ot the stud 88 in the aperture 87 of the lock plate 86.

Returning now to the moment of energization of the solenoid 30. The att action ot the core 3l causes the actuator shaft 32 to move toward the left so that the pin 84 engages the return arm 8l at the base ot the slot 83, and causes the arm 55, together with the disk 61 onv which it is mounted, to return to the normal position. ,Vere it not for the engagement oit the stud 88 with the aperture 87, the switch arm 65 would ily back to the full line position as soon as the stud 57 reached a point above the horizontal center on which the pivot 64 is located.

This is positively7 prevented, and must necessarily7 be so, because in the operation ot the auxiliary indicator the actuator sha'tt 32 is required to make substantially a ifnll stroke in order to return certain indicator plates, be'tore the contacts 33, 34 are brought into engagement. Consequently, the disk 6l. is permitted to reach substantially the normal full line position before the contacts 68, 79 are broken, thus allowing for the engagement of the contacts 33, 34 and the energization of the drop magnet 9a. Now as soon as the stud 67 rides beneath the portion 89, the spring lock 86 is raised, releasing the stud S8 and permitting the switch arm 65 to fly back by virtue of the spring G6. When the contact G8 engages the contact G9, the lamp 7l is lighted, and thus a cycle ot operation is completed. It is to be observed that the actuator shaft 32 is returned to the normal extended position by a spring 11G which moves the shaft toward the right.

While the construction and arrangement ot the remote control switch as herein described and claimed, is that oit a. generally preferred form, obviously modifications and changes can be made without departing Yfrom the spirit of the invention or the scope ot the claims.

I claim l. A remote control for indicators, comprising electromagnetic release means controlled from a remote point, shiftable switch control means, means under control of said electro-magnetic means for governing the shifting of said control means, and a switch member operatively associated to be rocked upon the shifting of said switch control means.

2. A remote control for indicators, comprising electro-magnetic release means controlled from a remote point, shiftable switch control means, means under control ot said electro-magnetic means for governing the shifting ot said switch control means, and means for holding said switch member when rocked to the operative position.

3. A remote control 'tor indicators, coinprising elettro-magnetic. release means controlled from a remote point, shi'ftable switch control means, means under control of said electro-magnetic means ttor governing the shifting oi said control means, a switch member operatively associated to be rocked upon the shitting of said switch control means, means for holding said switch niember when rocked to the operative position, and means carried by said control means, for releasing said switch member from said holding means, on the return movement oi? said control means.

4C. A remote control for auxiliary cash register indicators, electro-magnetic release means controlled :from a remote point, latch means and latch actuating means arranged to be rocked when the electro-magnetic means is energized, and having operati rc connection to said latch to shift the latter.

5. Switch mechanism, comlin'ising an electro-magnet, a normally raised locking pawh a latch disk with an armatare capable ot attraction by the electro-inagnet to rock said disk, and connecting means between the disk and pawl, to lower the pawl when the disk is rocked.

6. The combination, oit' a latch disk, electro-magnetically rocked in one direction and mechanically rocked in the return direction, and a pivoted latch, with connecting means for moving the latch in accordance with the rocking ot said disk.

7. Switch mechansm, comprising a pivotally mounted switch arm. controlling` means therefor, including a shiftable disk, connecting means between the disk and the arm causing the arm to rock to an operative position after the disk has shifted a predetermined distance, and operatively associated means for holding the arm in said position in opposition to the restoring iniiuence ot said connecting means on the return shitting o'll said disk, until said disk reaches approximately the original position.

S. Switch mechanism, comprising a pirotally mounted switch arm, a shiftablc switch control disk, resilient connecting means between the disk and the arm to rock the arm to an opera-tive position after a predetermined shifting of the disk, locking means for holding the switch arm in said position in opposition to the restoring ei'ort ot said resilient connection on the return movement of the control disk, and means operatively associated with the disk for automatically actuating said locking means to release said arm when the disk reaches substantially the normal position.

9. Switch mechanism, comprising a pivot-- ally mounted switch arm, a shittable switch control disk, resilient means connecting the disk to an extension ot the arm to rock the arm to an operative position after a predetermined shifting ot said disk, resilient lock means for catching a portion ot the arm and holding` said arm in the operative position against the influence of said resilient connecting means on the return movement ot said disk, and unlocking means including a stud, carried by the control disk for engaging said resilient lock means and automatically release said switch arm when the disk reaches aliiproximalely the original position.

l0. Switch mechanism, comprising a pivotally mounted switch arm, a shiltable disk, with a resilient connection to said arm, to -rock the arm to an operative position after a predetermined shitting ot the disk, operatively associated means for shitting the disk, electrically controlled latch mechanism normally holding the disk but enabling shitting thereof upon energization, and means tor holding the switch arm in the operative position in opposition to the restoring eilort ot the aforesaid connection, until the disk approximately reaches thenornial position on the return movement.

ll. The combination, of a shittalole switch arm control disk with a latch arm, a latch disk with a latch normally engaging said arm, a normally raised locking pawl in operative connection with said disk, and electro-magnetic means 'ior rocking the disk to release the latch arm and lower the locking pawl into the path of said arm.

l2. rihe combination, of a shittable switch arm control disk with a latch arm, a latch disk with a latch normally engaging said arm, a norn'ially raised locking pawl in vopeintii'fe connection with said disk, electroniagnetic means flor rocking the disk to r",- iease the latch arln and lower the locking pawl into the path ol said arm, ainln'ieans l'or shitting the disk to another j iosition when the latch arm is released by said pawl on the subsequent deenergizat-ion of said electro-n'iagnetic means.

13. Switch mechanism, comprising a pivotally mounted switch arm, with operatively associated contacts and a solenoid arranged to be energized by said arm; a shittable disk, having a resilient connection to said arm to shift the switch arm into operative position after a predetermined movement of said disk; a latch arm carried by the disk, a pivotally mounted latch disk with a latch normally engaging said arm, resilient operating means associated with said disk, a locking pawl, with an operative connection to the latch disk whereby the pawl is normally held raised; an electro-magnet remotely controlled to rock the latch disk, release 'the latch arm and move the pawl into the path of said arm, said pawl againraising to release 'the arm upon deenergization ot said electromagnet; means for holding the switch arm in the operative position, means operatively associated withthe latch arm and a portion ot said solenoid to return the shiftable disk when the solenoid is deenergized, and means carried by said disk for releasing the switch arm whenthe disk approximately reaches the normal position.

lll. The combination, olf a shilitable control disk with an opening, a switch arm pivotally mounted behind a disk, and a resilient element connecting the disk to an extension of the arm and joining said arm through said opening. 'A

l5. The combination, of a shiltable control disk having an opening, a switch arm pivotally mounted behind the disk, a resilient connection in front of the disk, lioining` an extension of said arm through said open- 'in-O and beine arrano'ed to rock the switch b) t1 b arm to an operative position upon shitting ot the disk a predetermined distance; and lock means depending in :Front oit ,the disk, for catching1 and holding a portion ot the switch arm, said lock means including a por` tion engageahlc by said disk on the return movement to again release the switch arm.

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